dear @Lagom
degree 7
your overall curve (green) has 8 CVs and Degree 7
if - at the end you re not building a single surface, but just using a section out of it - i do not see the need for Degree 7 - which adds unnecessary complexity.
rebuilding the this section by Degree 5 with 6 CVs does fit within 0.006 mm tolerance.
you might profit from building piecewise curves with lower degree.
swee2 - mac
i had many issues with sweep2 and Rhino7 / mac.
Especially it is very hard to get a “simple sweep” as it was called in older Versions.
I never understood why people / users did not push to have a simple sweep with error feedback … something like “simple sweep was not possible because shape/cross nr 3 does not meet …”
the problem was reported here and not sure if ever fixed RH-71505
in rhino mac v8 i get a simple sweep2 from your curves
the cv-distribution is nice
matchSrf G1 only
the boundary surfaces (extrusions) only tangent matchSrf will make sense.
after matching all 4 edges with G1 ill get this surface
File
rh8
Lagom_s_Test-2_02_tp.3dm (192.6 KB)
rh7
Lagom_s_Test-2_02_tpRH7.3dm (1.5 MB)
does this help ?
kind regards - tom